Home / 18,686.56-28,035.68-8,825.44

Finding the Fourth Proportional to 18,686.56, 28,035.68 and 8,825.44

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Solution

The fourth proportional to 18,686.56, 28,035.68 and 8,825.44 is: 13,240.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.56 : 28,035.68 = 8,825.44 : x
  2. Step 2: Convert to fraction form
    18,686.56/28,035.68 = 8,825.44/x
  3. Step 3: Cross multiply
    18,686.56x = 28,035.68 × 8,825.44
  4. Step 4: Simplify right side
    18,686.56x = 247,427,211.70
  5. Step 5: Solve for x
    x = 247,427,211.70/18,686.56
  6. Step 6: Final answer
    x = 13,240.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.